wchar.h

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#ifndef WCHAR_H_
#define WCHAR_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <stddef.h>
#include <stdint.h>
#include <wctype.h>

#pragma mark - Definitions -

typedef struct
{
    unsigned __opaque1, __opaque2;
} mbstate_t;

#pragma mark - Supported APIs -

int wcwidth(wchar_t);
int wcswidth(const wchar_t*, size_t);
wchar_t* wcschr(const wchar_t*, wchar_t);

#pragma mark - Unspported API -

#ifndef DISABLE_UNIMPLEMENTED_LIBC_APIS
wint_t btowc(int);
int wctob(wint_t);

wchar_t* wcscpy(wchar_t* __restrict, const wchar_t* __restrict);
wchar_t* wcsncpy(wchar_t* __restrict, const wchar_t* __restrict, size_t);

wchar_t* wcscat(wchar_t* __restrict, const wchar_t* __restrict);
wchar_t* wcsncat(wchar_t* __restrict, const wchar_t* __restrict, size_t);

int wcscmp(const wchar_t*, const wchar_t*);
int wcsncmp(const wchar_t*, const wchar_t*, size_t);

int wcscoll(const wchar_t*, const wchar_t*);
size_t wcsxfrm(wchar_t* __restrict, const wchar_t* __restrict, size_t);

wchar_t* wcsrchr(const wchar_t*, wchar_t);

size_t wcscspn(const wchar_t*, const wchar_t*);
size_t wcsspn(const wchar_t*, const wchar_t*);
wchar_t* wcspbrk(const wchar_t*, const wchar_t*);

wchar_t* wcstok(wchar_t* __restrict, const wchar_t* __restrict, wchar_t** __restrict);

size_t wcslen(const wchar_t*);

wchar_t* wcsstr(const wchar_t* __restrict, const wchar_t* __restrict);
wchar_t* wcswcs(const wchar_t*, const wchar_t*);

wchar_t* wmemchr(const wchar_t*, wchar_t, size_t);
int wmemcmp(const wchar_t*, const wchar_t*, size_t);
wchar_t* wmemcpy(wchar_t* __restrict, const wchar_t* __restrict, size_t);
wchar_t* wmemmove(wchar_t*, const wchar_t*, size_t);
wchar_t* wmemset(wchar_t*, wchar_t, size_t);

int mbsinit(const mbstate_t*);
size_t mbrtowc(wchar_t* __restrict, const char* __restrict, size_t, mbstate_t* __restrict);
size_t wcrtomb(char* __restrict, wchar_t, mbstate_t* __restrict);

size_t mbrlen(const char* __restrict, size_t, mbstate_t* __restrict);

size_t mbsrtowcs(wchar_t* __restrict, const char** __restrict, size_t, mbstate_t* __restrict);
size_t wcsrtombs(char* __restrict, const wchar_t** __restrict, size_t, mbstate_t* __restrict);

float wcstof(const wchar_t* __restrict, wchar_t** __restrict);
double wcstod(const wchar_t* __restrict, wchar_t** __restrict);
long double wcstold(const wchar_t* __restrict, wchar_t** __restrict);

long wcstol(const wchar_t* __restrict, wchar_t** __restrict, int);
unsigned long wcstoul(const wchar_t* __restrict, wchar_t** __restrict, int);

long long wcstoll(const wchar_t* __restrict, wchar_t** __restrict, int);
unsigned long long wcstoull(const wchar_t* __restrict, wchar_t** __restrict, int);

size_t mbsnrtowcs(wchar_t* __restrict, const char** __restrict, size_t, size_t,
                  mbstate_t* __restrict);
size_t wcsnrtombs(char* __restrict, const wchar_t** __restrict, size_t, size_t,
                  mbstate_t* __restrict);
wchar_t* wcsdup(const wchar_t*);
size_t wcsnlen(const wchar_t*, size_t);
wchar_t* wcpcpy(wchar_t* __restrict, const wchar_t* __restrict);
wchar_t* wcpncpy(wchar_t* __restrict, const wchar_t* __restrict, size_t);

int wcscasecmp(const wchar_t*, const wchar_t*);
int wcsncasecmp(const wchar_t*, const wchar_t*, size_t);

struct tm;
size_t wcsftime(wchar_t* __restrict, size_t, const wchar_t* __restrict,
                const struct tm* __restrict);
#endif

#ifdef __cplusplus
}
#endif

#endif // WCHAR_H_